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DRZ coughs and dies ......Help

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My DR 400 E will hiccup once in awhile and die. This only happens when it is idling and usually but not always, when the engine is cold. The motor will make a "clank" noise and die when idiling and does it maybe 3 times before it is warmed up. The bike runs good otherwise and pulls hard through the powerband. Is this coughing and stalling a jetting problem? Does anyone else have this problem?

Bike has a titanium Yosh pipe with 160 main and 1 size larger pilot jet. Thanks for any help-

Scott

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What milage is on your bike?

I can identify with the clank noice it happened on tight trail at low rpm.

My 400S done that until first service then i started giving it some and it went away, either that or maybe i just stoped babying the thing.

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Turn your fuel screw out one more turn and the idle up some. The problem will go away.

What have you done to the bike, as far as mods go?

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